test_create_opcode_emits_log()

Documentation for tests/amsterdam/eip7708_eth_transfer_logs/test_transfer_logs.py::test_create_opcode_emits_log@a9abd46e.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip7708_eth_transfer_logs/test_transfer_logs.py::test_create_opcode_emits_log --fork Amsterdam

Test that CREATE/CREATE2 opcodes emit logs based on value.

Source code in tests/amsterdam/eip7708_eth_transfer_logs/test_transfer_logs.py

@pytest.mark.parametrize(
    "create_value",
    [
        pytest.param(1, id="with_value"),
        pytest.param(0, id="zero_value"),
    ],
)
@pytest.mark.with_all_create_opcodes
def test_create_opcode_emits_log(
    state_test: StateTestFiller,
    env: Environment,
    pre: Alloc,
    sender: EOA,
    fork: Fork,
    create_opcode: Op,
    create_value: int,
) -> None:
    """Test that CREATE/CREATE2 opcodes emit logs based on value."""
    initcode = Op.RETURN(0, 0)
    initcode_len = len(initcode)

    contract_code = Op.MSTORE(
        0, Op.PUSH32(bytes(initcode).rjust(32, b"\x00"))
    ) + Op.SSTORE(
        0,
        create_opcode(
            value=create_value, offset=32 - initcode_len, size=initcode_len
        ),
    )
    contract = pre.deploy_contract(contract_code, balance=create_value)
    created_address = compute_create_address(
        address=contract,
        nonce=1,
        salt=0,
        initcode=bytes(initcode),
        opcode=create_opcode,
    )

    expected_logs = [transfer_log(sender, contract, 1)]
    if create_value > 0:
        expected_logs.append(
            transfer_log(contract, created_address, create_value)
        )

    tx = Transaction(
        sender=sender,
        to=contract,
        value=1,
        expected_receipt=TransactionReceipt(logs=expected_logs),
    )

    post = {created_address: Account(balance=create_value)}
    state_test(env=env, pre=pre, post=post, tx=tx)

Parametrized Test Cases

This test generates 4 parametrized test cases across 1 fork.